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Income Taxes (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Abstract]      
Deferred Tax Assets, Valuation Allowance $ 0    
Income Taxes (Textual) [Abstract]      
Income tax benefit to shareholders equity $ 2,900,000 $ 1,000,000 $ 800,000